
The recommended tire pressure for the 2021 Leiling is 2.4-2.5 bar. Due to seasonal factors, the tire pressure can be appropriately increased by 0.2 bar in winter and reduced by 0.1 bar in summer. This data is based on the international GBT2978-2008 standard. How to check the tire pressure of the 2021 Leiling: To view the tire pressure on the Leiling dashboard, use the arrow keys on the multifunction steering wheel. Press right once to find the tire pressure monitoring display. Generally, a tire pressure above 2.8 bar is considered too high, while a pressure below 2.0 bar is too low. Hazards of overinflated tires: Reduced tire friction and adhesion, affecting braking performance; causes steering wheel vibration and deviation, reducing driving comfort; accelerates wear on the central tread pattern, shortening tire lifespan; increases vehicle vibration, indirectly affecting the lifespan of other components; overstretches tire cords, reducing elasticity and increasing the load on the vehicle during driving. Hazards of underinflated tires: Increased friction with the road surface, leading to higher fuel consumption; makes the steering wheel heavy and prone to deviation, compromising driving safety; increases movement in various parts of the tire, causing abnormal heat due to excessive rolling; weakens cord and rubber functions, leading to delamination or cord breakage and excessive friction with the rim, damaging the tire bead and causing abnormal wear; multiplies friction between the tire and ground, rapidly raising tire temperature, softening the tire, and drastically reducing strength. High-speed driving may result in a tire blowout. If the tire pressure monitoring indicator lights up (a yellow symbol with an irregular circle, no stamp on top, four small spikes below, and an exclamation mark inside), there are generally three possible reasons: Abnormal tire pressure: Typically, an alarm is triggered if the pressure is below 1.8 bar or above 3.0 bar. In this case, inspect and adjust the tire pressure. Tire pressure monitoring not reset: After inflating the tires, if the tire pressure is not reset promptly, the system retains the old data, causing the indicator to light up. Simply reset the tire pressure to resolve this. Damaged tire pressure sensor: The sensor, which monitors tire pressure, is installed inside the tire and connected to the inflation valve. If the sensor is damaged during driving (e.g., by hitting a curb), the tire pressure warning light will activate. A damaged sensor must be replaced.

As a long-term owner of a Leiling, I've checked the manual and conducted actual tests. The recommended cold tire pressure for the 2021 Leiling is optimally between 2.3-2.5 bar. The yellow sticker on the driver's door frame clearly indicates this, with specific values differing between the 1.8L and 1.5L hybrid versions. Every Friday before work, I use a tire pressure gauge to check, especially during cold winters. Last week, I noticed all four tires had dropped to 2.1 bar and immediately inflated them to 2.4 bar. Don't underestimate this difference—last summer on the highway, the tire pressure soared to 2.7 bar, causing noticeable steering wheel float, which scared me into pulling over at a service area to release some air. Remember to measure when the tires are cold, as readings from hot tires after highway driving are completely unreliable.

After ten years of car repair, I've encountered numerous tire pressure issues. For the Leiling model, the tire pressure must never exceed 2.8 bar. Last time, a car owner followed a friend's advice and inflated to 3.0 bar, resulting in rapid wear of the center tread pattern during high-speed driving. The manufacturer's recommended values are repeatedly verified by the test team. Those with modified rims should pay attention to adapting the tire pressure. For example, for 215/40R19 tires on 19-inch rims, it's advisable to maintain a slightly higher pressure of 2.4 bar than the factory setting. Older tires with over 60% tread wear should actually have the pressure reduced by 0.2 bar. Last year, a Leiling with nearly worn-out treads had a bulge after hitting a pothole at standard tire pressure.


